Slack offers Free Trial, but CallHippo does not.
Slack is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
CallHippo is designed for Large Enterprises, Medium Business and Small Business.
Pricing for Slack Starts at $2.67/Month whereas for CallHippo Starts at $14/User/Month when Billed Yearly.
Some top alternatives to Slack includes Microsoft Teams, Glip, Google Chat, ChatWork, Dialog, Office Chat, imBee, Takle, SPACE Channel and Teamwork Chat.
Some top alternatives to CallHippo includes Nextiva, Zendesk Talk, Dialer360, CallTools, CloudTalk, Call Center Studio, TeleCapture, Vonage Contact Center, RingCentral Contact Center and MyOperator.